CakeML/cakeml

more readable grammar

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#94 opened on Nov 28, 2015

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 (2 comments) (0 reactions) (1 assignee)Standard ML (98 forks)auto 404
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Description

The current CakeML grammar is carefully designed to be non-ambiguous, but as a result has a surprising number of non-terminals and is quite involved. For presentation purposes, it would be nice to have a (possibly ambiguous) higher-level grammar, that can then be used as the semantics, with the current grammar relegated as an implementation strategy.

See also https://lists.cakeml.org/private/dev/2015-November/001365.html

Contributor guide

Research direction
Review the current CakeML grammar and the mailing list discussion to understand the design goals. Propose a simplified high level grammar that captures the essential semantics while remaining readable.
Tech stack
None
Domain
compilers
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
Standard MLparser theory
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30